Able to adjust to new conditions; able to be modified for a new use or purpose.
Adaptability is our willingness to think, and to act, differently. It is the recognition that both the self and the thing immediately outside of the self - be that another person, a situation, ‘life’ etc - are in relationship. You and it both have needs, preferences and ways of being, and you can either work with, resist or walk away from the other’s needs, preferences and ways of being.
Adaptability is a virtue because it gives you a choice about how you show up in any given situation. You’re not locked into one way of being, and thus you’re not excluded from opportunities simply because you are a square peg that cannot be accepted by the round hole. You’re suddenly a round peg, if that serves you. Being able to change your approach comes in really handy in those situations where you cannot, for whatever reason, walk away.
Adaptability is also a virtue in that it enables us to meet other people where they are at, not just where we are at. It enables us to treat others who aren’t, perhaps, as far along as us in their own journey - those who have learnt different lessons to us and thus who perceive the world in a way that we don’t understand - with respect, kindness and consideration. Adaptability enables us to “Seek first to understand, and then to be understood” (Stephen Covey).
If “change is the only constant in life,” (Heraclitus), then the level of one’s adaptability will surely be the difference between an enjoyable, productive life, and a miserable one.